BUCHI KjelSampler K-377 - Manual (Page 153)

9 Shutdown, storage, transport and disposal
153 K-375/376/377 Operation Manual, Version B
9 Taking out of operation
This chapter instructs how to shut down the instrument, how to pack it for storage or transport, and
specifies the storage and shipping conditions.
Before the device is shipped,
• the mains cable,
• all level sensors,
• the cable to the dosing unit,
• the hoses to the sampler (if used)
must be disconnected and
all water/reagent hoses must be disconnected and removed from the tanks. The hoses and pumps
for boric acid and sodium hydroxide dosage must be rinsed thoroughly with distilled water.
9 .1 Emptying the steam generator
To empty the steam generator, proceed as follows:
• Turn off the instrument.
• Let the steam generator cool down for 30 minutes.
! CAUTION
Risk of burns by hot surface. The steam generator heats up during operation.
• Always let the device cool down after operation before opening the service door.
• Open the service door.
• Attach an appropriate silicone hose a to the drain cock b at the steam generator.
• Insert the silicone hose into a vessel with at least 500 mL volume.
• Slowly open the stop-cock b with a screw driver and completely empty the steam generator.
• Close the stop-cock with a screw driver.
b
a
a Silicone hose to collection vessel
b Drain with stop cock